ICQT Constant-Q non-stationary Gabor synthesis Usage: fr = icqt(c,g,shift,Ls,dual) fr = icqt(c,g,shift,Ls) fr = icqt(c,g,shift) Input parameters: c : Transform coefficients (matrix or cell array) g : Cell array of Fourier transforms of the analysis windows shift : Vector of frequency shifts Ls : Original signal length (in samples) dual : Synthesize with the dual frame Output parameters: fr : Synthesized signal (Channels are stored in the columns) Given the cell array c of non-stationary Gabor coefficients, and a set of filters g and frequency shifts shift this function computes the corresponding constant-Q synthesis. If dual is set to 1 (default), an attempt is made to compute the canonical dual frame for the system given by g, shift and the size of the vectors in c. This provides perfect reconstruction in the painless case, see the references for more information. References: N. Holighaus, M. Doerfler, G. A. Velasco, and T. Grill. A framework for invertible, real-time constant-Q transforms. IEEE Transactions on Audio, Speech and Language Processing, 21(4):775 --785, 2013. G. A. Velasco, N. Holighaus, M. Doerfler, and T. Grill. Constructing an invertible constant-Q transform with non-stationary Gabor frames. Proceedings of DAFX11, 2011.
Url: http://ltfat.github.io/doc/filterbank/icqt.html
See also: cqt.
Package: ltfat